Income Taxes - Schedule of Components of Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Current:
Federal	$ 4,423	$ 6,020	$ 6,084
State	1,038	507	983
Foreign	626	3,159	838
Current Income Tax Expense (Benefit)	6,087	9,686	7,905
Deferred:
Federal	1,961	17,034	4,765
State	(73)	643	184
Foreign	275	(470)	62
Deferred Income Tax Expense (Benefit)	2,163	17,207	5,011
Total income tax expense	$ 8,250	$ 26,893	$ 12,916